I have a router home based on Antergos and I was trying to install OpenSwan to set up tunneling. I have installed packages from AUR (OpenSwan is not on official for x86 platforms) and after installing, configuring and starting (systemctl start openswan) I get:

Kernel support is failed, because openswan cannot start… And it cannot start because there is no kernel support for netkey nor klips as I understand. Anyone encountered a similar problem and can help on that? I assume it’s Antergos problem since according to arch wiki ipsec support is there and it should work just fine.

I have a router home based on Antergos and I was trying to install OpenSwan to set up tunneling. I have installed packages from AUR (OpenSwan is not on official for x86 platforms) and after installing, configuring and starting (systemctl start openswan) I get:

Kernel support is failed, because openswan cannot start… And it cannot start because there is no kernel support for netkey nor klips as I understand. Anyone encountered a similar problem and can help on that? I assume it’s Antergos problem since according to arch wiki ipsec support is there and it should work just fine.

I’m not familiar with OpenSawn or IpSec so I can’t be of much help. I just wanted to point out that the issue could not be an Antergos one as we do not modify the Arch kernel. You are using Arch, unmodified

Did you load the kernel modules using modprobe? (Just throwing that out there, like I said I’m not familiar with this topic)

Thanks for the reply! I will also try on Arch forums, maybe they will help… I do not get what is wrong with that. And yes, it may be that modprobe will help, I do not know what to modprobe though

EDIT: Ok, so I managed to resolve the problem. It turns out, that when doing an update which involves kernel being updated the system does not notify you that a restart is required. And what essentially happens is that some of the modules/libraries/whatever are “missing” (or should I rather say, system is looking for them in a wrong place) which causes such problems. It is probably not the only issue it may cause. Since it is a router I forgot about doing such an update and it caused openswan to have problems. At least I think this is the problem, all I did is restart and reinstall of openswan and it works fine. All in all - I would propose doing a restart each time an update is made, just in case such problems occur.